Monitoring Setup

Two layers: application health (errors, user behavior) and operational health (are the queues draining, is the database keeping up). An app with clean Sentry but a queue backing up or a table scan on every request is still failing its users — cover both.

When to Use

• Need to set up error tracking (Sentry)
• Want to configure Google Analytics
• Need monitoring for production applications
• Want to track application errors and user behavior
• Need operational signals: queue depth, slow queries, connection saturation, and alerts on them

Sentry Setup

NestJS Backend